Quantum Corp reports Q3 2026 results
- Expected to meet or exceed Q3 2026 guidance
- William H. White terminated as CFO on 10/9/2026
- Hiral A. Patel appointed as new CFO
QMCO
QUANTUM CORP /DE/ SEC filings
Every EDGAR filing for QUANTUM CORP /DE/ (QMCO), newest first, with AI summaries and stories.
- Ticker
- QMCO
- CIK
- 709283
- Sector
- Computer hardware and networking
- Latest filing
- Oct 9
Next: earnings expected ~Nov 16 ยท 10-Q expected ~Nov 16 (deadline Nov 9)
Insider activity
No open-market insider buys in the last 30 days.
Also: 7 grants or exercises.
Filings
Every filing, newest first. MAJOR and NOTABLE filings lead the app's feed; ROUTINE ones are kept here.
MAJOR8-KQUANTUM CORP /DE/QMCOLIVE ROUTINE4QUANTUM CORP /DE/QMCOLIVE 9 insider filings
Anthony Craythorne, insider filing for QMCO
Show all 9
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
Anthony Craythorne
ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINES-8QUANTUM CORP /DE/QMCOLIVE ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINE3QUANTUM CORP /DE/QMCOLIVE Hiral Patel, new insider at QMCO
Hiral Patel, reporting
ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINESCHEDULE 13GQUANTUM CORP /DE/QMCOLIVE 2 13G filings
Ownership stake disclosure by Two Seas Capital LP
Show all 2
- SCHEDULE 13GOwnership stake disclosure
- SCHEDULE 13GOwnership stake disclosure
Two Seas Capital LP, filed by
ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINESCHEDULE 13GQUANTUM CORP /DE/QMCOLIVE Ownership stake disclosure by OAKTREE CAPITAL MANAGEMENT LP
OAKTREE CAPITAL MANAGEMENT LP, filed by
ROUTINE4QUANTUM CORP /DE/QMCOLIVE Anthony Craythorne, insider filing for QMCO
Anthony Craythorne, reporting
ROUTINEARSQUANTUM CORP /DE/QMCOLIVE ROUTINEDEFA14AQUANTUM CORP /DE/QMCOLIVE ROUTINEDEF 14AQUANTUM CORP /DE/QMCOLIVE ROUTINE424B3QUANTUM CORP /DE/QMCOLIVE ROUTINEEFFECTQUANTUM CORP /DE/QMCOLIVE ROUTINE4QUANTUM CORP /DE/QMCOLIVE 2 insider filings
Laura A. Nash, insider filing for QMCO
Show all 2
- 4Insider filing for QMCO
- 4Insider filing for QMCO
Laura A. Nash, reporting
NOTABLE10-KQUANTUM CORP /DE/QMCOLIVE ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE NOTABLENT 10-KQUANTUM CORP /DE/QMCOLIVE ROUTINE4QUANTUM CORP /DE/QMCOLIVE 2 insider filings
John Fichthorn, insider filing for QMCO
Show all 2
- 4Insider filing for QMCO
- 4Insider filing for QMCO
John Fichthorn, reporting
NOTABLESCHEDULE 13D/AQUANTUM CORP /DE/QMCOLIVE Ownership stake disclosure by Dialectic Technology SPV LLC (amended)
Dialectic Technology SPV LLC, filed by
ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINESDQUANTUM CORP /DE/QMCOLIVE ROUTINE4QUANTUM CORP /DE/QMCOLIVE 3 insider filings
Laura A. Nash, insider filing for QMCO
Show all 3
- 4Insider filing for QMCO
- 4Insider filing for QMCO
- 4Insider filing for QMCO
Laura A. Nash, reporting
ROUTINE4QUANTUM CORP /DE/QMCOLIVE William Hillis White, insider filing for QMCO
William Hillis White, reporting
ROUTINE424B3QUANTUM CORP /DE/QMCOLIVE ROUTINEEFFECTQUANTUM CORP /DE/QMCOLIVE NOTABLE10-QQUANTUM CORP /DE/QMCOLIVE ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINE3QUANTUM CORP /DE/QMCOLIVE William Hillis White, new insider at QMCO
William Hillis White, reporting
ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE ROUTINE8-KQUANTUM CORP /DE/QMCOLIVE NOTABLESCHEDULE 13D/AQUANTUM CORP /DE/QMCOLIVE Ownership stake disclosure by Dialectic Technology SPV LLC (amended)
Dialectic Technology SPV LLC, filed by
ROUTINE4QUANTUM CORP /DE/QMCOLIVE Anthony Craythorne, insider filing for QMCO
Anthony Craythorne, reporting